- Tytuł:
- Intensification of beech wood drying process using microwaves
- Autorzy:
-
Rajewska, Kinga
Smoczkiewicz-Wojciechowska, Anna
Majka, Jerzy - Powiązania:
- https://bibliotekanauki.pl/articles/185246.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
beech wood
microwave drying
strength tests
nonlinear regression
drewno bukowe
suszenie mikrofalowe
testy wytrzymałościowe
regresja nieliniowa - Opis:
- This paper analyses the influence of the applied microwave power output on the intensification of drying in the context of process kinetics and product quality. The study involved testing samples of beech wood (Fagus sylvatica L.). Wood samples were dried in the microwave chamber at: 168 W, 210 W, 273 W, 336 W and 378 W power output level. For comparison, wood was dried convectively at 40 ◦C and 87% air relative humidity. The analysis of drying process kinetics involved nonlinear regression employing the Gompertz model. Dried samples were subjected to static bending tests in order to specify the influence of the applied microwave power on modulus of elasticity (MOE) and modulus of rapture (MOR). The obtained correlations of results were verified statistically. Analysis of drying kinetics, strength test results and Tukey’s test showed that the applied microwaves of a relatively low level significantly shortened the drying time, but did not cause a reduction in the final quality of dried wood, compared with conventional drying.
- Źródło:
-
Chemical and Process Engineering; 2019, 40, 2; 179--187
0208-6425
2300-1925 - Pojawia się w:
- Chemical and Process Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł